I’m experiencing the same exact issue. I have the latest installed Daedalus (Version 0.11.2) with full sync. I can see my current, original amount from previous transactions. I initiated a transfer of 75K ADA from Bittrex to the Daedalus wallet. The Cardano Block Explorer confirms the transaction to the correct address. The Bittrex exchange confirms the transaction as well. The Daedulus wallet does not reflect the 75K transfer. It has been over 24 hours. I triple check all addresses. FRUSTRATING.
Any help would be appreciated as I am sure there are others having the same issue.

If the addresses really are correct then I’d suggest trying another wallet, eg Yoroi, or installing Daedalus and recovering the wallet on a different machine if you can, or forcing a complete resync by backing up and deleting the data folders.IOHK Support